If you thought that its impossible to detect the physical location of a person in your Wireless Lan (WiFi), then read on. A tool called Moocher Hunter can help you physically track the users connected in your WiFi network. This tool would come handy for network admins or police authorities who would want to spot and catch hackers using WiFi for illegal purposes . Recently the Indian police raided the Mumbai home of an American expatriate after someone used his open wireless network to send an email that took responsibility for a bomb blast that killed at least 42 people.Actually someone used wardriving to use his internet connection to send that sensitive e-mail.

Good things about MoocherHunter-

Its free to use.

It can predict the Physical Location of the computer using the WiFi connection.

The algorithms applied use various signal variables to accurately predict the position of the connected laptop/machine. MoocherHunter™ identifies the location of an 802.11-based wireless moocher or hacker by the traffic they send across the network. If they want to mooch from you or use your wireless network for illegal purposes (e.g. warez downloading or illegal filesharing), then they have no choice but to reveal themselves by sending traffic across in order to accomplish their objectives. MoocherHunter™ enables the owner of the wireless network to detect traffic from this unauthorized wireless client (using either MoocherHunter™’s Passive or Active mode) and enables the owner, armed with a laptop and directional antenna, to isolate and track down the source.